Machine for forming loops for wires



(ModeL) G. D. HAWORTH;

Machine forPorming Loops for Wire.

No. 233,751- Patented Oct. 26, 1880.

11 4 .1. 6 Z w l Inven/ZZZ' Uivrran STATES I ATENT rrren.

GEORGE D. HAVVORTH, OF DECATUR, ILLINOIS.

SPECIFICATION forming part of Letters Patent No. 233,751, dated October 26, 1880,

Application filed September 3,1880. (ModeL) To all whom it may concern:

Be it known that I, GEORGE D. HAWORTH, of Decatur, county of Macon, State of Illinois, have invented certain new and useful I mprovements in Machines for Forming Loops or Eyes in wires, of which the following is a full, clear, and exact description, reference'being had to the accompanying drawings, making part of this specification, in which Figure 1 is a plan or top view of my improved machine. Fig. 2 represents a longitudinal section through the same. Fig. 3is a similar section, showing the operating parts in different position; and Figs. 4 and 5 are side elevations of the wire, showing the partlyformed and the completed loop or eye as made by my improved machine.

Myinvention has especial reference to the looping or knotting of the ends of the links or sections of wires for use in connection with check-row corn-plan ters but it may be advair tageously employed for forming loops in wires for other uses than that specified, as will be apparent from the following description with reference to the drawings, in which A represents a bed, table, or platform, which may be supported upon any suitable frame to give it the desired elevation, or, if preferred, it may be secured to the floor of the room or shop in which the machine is to be used. Bis a strong metal plate, made, by preference, slightly tapering in longitudinal section, as shown, as giving strength where required with less weight of metal than would otherwise be necessary, and provided at its thicker end with upright lugs or ears I) at the sides, upon which are formed laterally-projecting sleeves or perforated studs or pins I) b, forming journals or the fulcrum for a U-shaped or double lever, O O, the outer or swinging ends or arms of which are united, as shown,for causing them to move together as asingle lever.

. 0n the plate B is secured a fiat metal bar, D, of a width con forming to the space between the lugs or ears I) b, and provided with perforations countersunk for the reception of bolts d, through which said bar and the plate B are firmly secured to the bed or floor A, as shown. This bar D forms a bed on which the wires to be bent or looped rest, and is of a thickness just sut'ficient to permit the wires to be bent to pass under a pin, e, passed through the central perforation in the lugs 12 and sleeves b, and around which the loops in the wires are formed, as will be explained.

The upper face of the bar I) has transverse grooves formed in it at d d d d, the first named, 61, being directly under the pin 6 and serving to assist in the formation of the loops. The other grooves, d d d, serve to determine the position of a clamping and sustaining bar or plate, F, by means of which the wires are held in place and the pin 0 is sustained in the process of bending the wires.

G is a clamping hook or jaw connected, through an upright rod, G, with a foot-lever, H, through which the jaw istorced down on the clamping plate or bar F. This lever may be arranged in any convenient or suitable way adapting it to be controlled by the foot of the operator.

Thejaw G, when not held down by means of lever H, is retracted by a spring, g, (shown, in this instance, as surrounding the rod G;) but it may be applied in any convenient Way.

I is a hand-lever pivoted to the levers O O at a point eccentric to the pivot or fulcrum of said levers, as shown, and provided on its inner end with a cam shaped projection, I, through which the crimping or bending of the wire is efi'ected, as follows: Supposing the parts to be in the position shown in Figs. 1 and 2, wires are placed on the barD sutficient in number to cover said bar and fill the space between the ears b, with their ends overhanging the inner cam-shaped end of lever I, as shown. The pin 6 is now passed through the ears I) over said ends of the wires, and the clamping-bar F is placed over the wires with its inner end resting on the pin 0 for supporting or sustaining the latter against the bending action, and with the foot or angle piece f at its outer end resting in or over the notch d as shown in Fig.2. The jaw G is now brought down by means of lever H, as explained, for clamping the bar F in place when the levers G and I are raised, the cam-shaped end of lever I carrying the ends of the wires with it until they are brought into the position shown in Fig. 3, the ends of the wire being bent around pin 0 by this movement and by the cam-shaped end of the eccentric lever into the partly-formed loop shown in Fig. 4. The levers are now moved back a little to release the plate F, the pin 0 no longer requiring its support, and said plate is moved outward until its footf rests in notch or groove 61, its inner end resting over groove 0?, as shown. The levers G and I are now coupled together by means of a sliding hook on the end of lever Land said levers are again moved forward together for completing the loops, which, by this last action, are made to assume the completed loop or eye t'orni shown in Fig. 5, when the movement of the levers is reversed and the pin 6 withdrawn, releasing the wires, when the operation can be repeated, as desired.

Having now described the invention, I claim- GEORGE D. HAVVORTH.

Witnesses:

W. W. KERR, THEO. COLEMAN. 

